Test strip device



FIG. 1 is a perspective view of a test strip device;

FIG. 2 is a top plan view therof;

FIG. 3 is a left side view thereof;

FIG. 4 is a right side view thereof;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is a front view thereof; and,

FIG. 7 is a back view thereof.

The ornamental design for a test strip device, as shown and described. 